ramnit | a0dbbfecc907c9a06cc102e3da2a982852ac4eebfdf687997dbf2a44e4238595

Analysis

max time kernel
95s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 09:34

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General

Target

JaffaCakes118_78f31916b1ab2fe50181b8d6abb30ed0.dll
Size

304KB
MD5

78f31916b1ab2fe50181b8d6abb30ed0
SHA1

8ee48cb4d24bfbe75e523535fc109b9b6d058e37
SHA256

a0dbbfecc907c9a06cc102e3da2a982852ac4eebfdf687997dbf2a44e4238595
SHA512

aff9dea7e7f7ceb186863b605aced6576e52a6de361d6ed5e42d3d21e4658d35e77692b246d16bc26036d0506b4805e6225ff9fa794503246dca2aa9e36eb676
SSDEEP

6144:4Qb6g1fEi2FSGXbOYvz2+uOpGTIttHUUYTB/tZeXSGxUHxM8hYK:4ttBEGXKSqEpGTIPdYT9tZeXFxoMxK

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
4784	rundll32Srv.exe
4656	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000b000000023bfc-3.dat	upx
behavioral2/memory/4784-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4784-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4656-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4656-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxC822.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4944	4720	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153803"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4126982905"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153803"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4131670182"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{219A5DDC-CA7F-11EF-91C3-CEB9D96D8528} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442748259"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4126982905"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153803"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe
4656	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4988	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4988	iexplore.exe
4988	iexplore.exe
2040	IEXPLORE.EXE
2040	IEXPLORE.EXE
2040	IEXPLORE.EXE
2040	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 4720	2980	rundll32.exe	83
PID 2980 wrote to memory of 4720	2980	rundll32.exe	83
PID 2980 wrote to memory of 4720	2980	rundll32.exe	83
PID 4720 wrote to memory of 4784	4720	rundll32.exe	84
PID 4720 wrote to memory of 4784	4720	rundll32.exe	84
PID 4720 wrote to memory of 4784	4720	rundll32.exe	84
PID 4784 wrote to memory of 4656	4784	rundll32Srv.exe	86
PID 4784 wrote to memory of 4656	4784	rundll32Srv.exe	86
PID 4784 wrote to memory of 4656	4784	rundll32Srv.exe	86
PID 4656 wrote to memory of 4988	4656	DesktopLayer.exe	87
PID 4656 wrote to memory of 4988	4656	DesktopLayer.exe	87
PID 4988 wrote to memory of 2040	4988	iexplore.exe	90
PID 4988 wrote to memory of 2040	4988	iexplore.exe	90
PID 4988 wrote to memory of 2040	4988	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78f31916b1ab2fe50181b8d6abb30ed0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78f31916b1ab2fe50181b8d6abb30ed0.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4784
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4656
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4988
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4988 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 632
    3⤵
    - Program crash
    PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4720 -ip 4720
1⤵
PID:4632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
8fad2e07a4c7a80a9b50d87e76420c29

SHA1
7faa7310d52e1b97b5f7597dda3fa439f4ec04d8

SHA256
be210b4b624d55d076fdc5b6d9f6b98acb116c646e43c56e52790d910bca942d

SHA512
459a02e6817f3ba0a1edc2590a266a772127f39f651c9a5ee1170fbaefedeadff6a6ff948f97ed09670413dabe611c2c34e00e7600b4ff501455c35776da7895

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
2ff4dbbf6c0b762cbf2f9676e46b8239

SHA1
2dc9ac8bdf35a5f2cf35133ee43c635bb2bbdf09

SHA256
232dc7a2b3b4eb3de78afa1777ce01685ad2cee9b07bb164d5ca41b352d28a04

SHA512
b7dd9beffc64e9d35dd0949c239d38f017450bfb4269d5542f66b548bcc7836182a9c2f6e8815ff6d793d6b50143fcbfea0d9c05ec37925413a3d7348eccf397

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4656-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4656-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4656-14-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/4720-0-0x0000000040000000-0x000000004004C000-memory.dmp

Filesize
304KB

Download
memory/4720-17-0x0000000040000000-0x000000004004C000-memory.dmp

Filesize
304KB

Download
memory/4784-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4784-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4784-6-0x0000000000590000-0x000000000059F000-memory.dmp

Filesize
60KB

Download